Fixed Weights

Also seen as: Fixed Allocation, manual weights, custom weights

What happens if my weights do not add up to 100?

Nothing breaks — the weights are rescaled so they do. Fincanva reads your numbers as proportions, divides each one by their total, and uses the result as the actual share of capital. The app shows both figures while you type, as "Raw total 110 · normalized to 100%", so you can see the raw sum you entered and know it will be converted.

The practical consequence is that only the ratios between your numbers matter. Entering 50, 30, 20 and entering 5, 3, 2 produce exactly the same allocation. Entering 40, 40, 40 is the same as Equal Weights across three items.

Where do the weights apply?

To whatever the level is allocating across. Inside a strategy you set one weight per instrument; inside a Combined you set one weight per member strategy. Fixed Weights is one of the six methods available at both levels, and the normalization works identically in both.

Because the weights are attached to specific items, they follow your selection: add an instrument and it starts at the default weight, remove one and its weight leaves with it — the remaining numbers are then renormalized over the smaller set.

Defaults in Fincanva

• Every item starts at a weight of 1, so an untouched Fixed Weights allocation is an even split — the same result as Equal Weights.
• Weights are entered as whole numbers and are read as proportions, never as literal percentages.
• The method reads no history, so it does not use the In-sample calculation window.
• The weights you set are targets, reapplied at each rebalance date: between rebalances the actual mix drifts with prices, then snaps back to your numbers.
• Two shortcuts exist alongside the manual numbers: an Equal preset that sets every weight to the same value, and Clear all, which empties them.

Worked example

A strategy holds three instruments and you enter 50, 30, 20. The raw total is 100, so the weights are used as they stand: 50% / 30% / 20%. On $100,000 that is $50,000, $30,000, and $20,000.

Now change the middle number to 40, so you have entered 50, 40, 20. The raw total is 110, and the app reads "Raw total 110 · normalized to 100%". Each weight is divided by 110: 50 ÷ 110 = 45.5%, 40 ÷ 110 = 36.4%, 20 ÷ 110 = 18.2%. The first instrument's share fell from 50% to 45.5% even though you never touched its number — because the other numbers grew, and every share is measured against the total.